The gray 8GB Ballistix Sport LT Series DDR4 2666 MHz UDIMM Memory Kit from Ballistix is a set of 2 memory units, each of 4GB capacity. These are unbuffered, non-ECC modules that operate on a frequency of 2666 MHz for use with DDR4 compatible systems. With a digital camo design and an integrated heat spreader for enhanced thermal performance, these modules look cool and stay cool. It features XMP 2.0 profiles for easy configuration in Intel-supported systems and engineered to deliver fast and reliable performance memory for enthusiasts and mainstream users alike.